Photos: 20 best water parks in the world

Located inside the West Edmonton Mall in Alberta, the indoor water park covers five acres. The Canadian park features an Aqualoop looping slide, the Thunderbolt sled slide, simulated surfing, and a zipline.

Located inside the West Edmonton Mall in Alberta, the indoor water park covers five acres. The Canadian park features an Aqualoop looping slide, the Thunderbolt sled slide, simulated surfing, and a zipline.